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INLAYS & ONLAYS
WORK
To repair damage to the tooth’s biting surface, rather than using a simple filling, or a crown, a dentist will often use an inlay, or an onlay. Inlays and Onlays can be made from porcelain, gold, or composite or ceramic resin, although porcelain is now becoming the material of choice because of its strength and potential to match the natural color of your tooth. An inlay is similar to a filling and lies inside the cusp tips of the tooth. They are custom-made to fit the prepared cavity and are then cemented into place. An onlay is a more extensive reconstruction that covers one or more cusps of a tooth. Onlays are indicated in situations where a substantial reconstruction is required. However, more of the tooth structure can be conserved compared to the placement of a crown. Inlays and Onlays are applied in two dental visits. At the first visit, the old filling, or decay, is removed, and the tooth is prepared for the inlay / onlay. The dentist will then make an impression of the tooth, and send this impression to a dental laboratory. This impression will be used by the laboratory to construct a custom-made porcelain, or gold inlay / onlay. At this time the dentist will place a temporary sealant on your tooth and schedule a second appointment. At the second visit, the temporary sealant is removed. Your dentist will then ensure that the inlay / onlay fits properly in the tooth and does not interfere with your bite. The inlay / onlay is then bonded into the tooth with a strong bonding resin, and polished smooth. An inlay or onlay is a solid filling made outside the mouth, and then cemented into the tooth.
Advantages & Disadvantages of Inlays & Onlays
Advantage
Long time evaluations of ten years time showed a very good durability of porcelain restorations which is similar to those of gold restorations. In general, ceramic Inlays or Onlays can replace old and damaged fillings or new carious lesions. However there has to be a certain amount of tooth substance left after removal of the old restoration or caries to provide enough stability for the ceramic restoration. This is the reason why a decision on the indication for a ceramic restoration should be individually made by the dentist for each situation. This will ensure a long durability of the restoration. |
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Cosmetic Dentistry India ?. 1. Write to us your name / city name / country / from where you are seeking Dental treatment opinion with your contact details. 2. Send by email or by post copy of recent clinical observations / diagnosis / medical report translated into English. 3. Send all images in JPEG file format. 4. Send us OPG image of inner cavity / digital image files of mouth / Teeth X-rays with your detailed dental treatment requirement. |
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(Website Update 1st. Jan. 2010)